Barton Size 4 58mm Plain Bearing Pulley Upright Block

Size 4 58mm Plain Bearing Pulley Upright Block

The Size 4 Barton range of blocks has a 58mm (2 5/16″) sheave. They are of a rugged construction featuring high-grade molded side plates that are through-bolted and riveted for added strength and security. All load-bearing components and interior frame are from marine grade 316 stainless steel and both plain and ball-bearing sheaves are available. This sleek and versatile range is engineered for use on larger cruising and racing yachts and is compatible with our ball-bearing mainsheet tra